Rihanna - Rumour has it that Rihanna’s naked photographs were leaked online by Chris Brown after they broke up, although this has never been confirmed.

Vanessa Hudgens - The High School Musical star had intimate photos leaked three times over three years.

Kim Kardashian - Kim was the victim of the iCloud hack and had one picture leaked from her mobile. The photo showed her topless, and looking in the mirror.

Scarlett Johansson - Pics that Scarlett took for former lover Ryan Reynolds leaked online. The actress said: "They were sent to him. There's nothing wrong with that... It's not like I was shooting a porno although there's nothing wrong with that either."

Kelly Brook - Intimate pics she had taken on her phone were leaked online during the iCloud hack.

Blake Lively - Pictures of Blake posing nude in a mirror turned up online. However, the former Gossip Girl star claims that the snaps are fake.

Kirsten Dunst - After photos leaked, Kirsten said in 2014: "I try to have a sense of humour about a really unfortunate situation. The FBI is investigating, so they're handling it right now."

Jennifer Lawrence - The actress recently spoke to Vogue about the hacking ordeal: "I think people saw [the hacking] for what it was, which was a sex crime, but that feeling, I haven't been able to get rid of it... Having your privacy violated constantly isn't a problem if you're perfect. But if you're human, it's terrifying.

Getty Images - Getty

Snaps of Catherine Tyldesley in lingerie leaked online

What was the big iCloud hack?

On 31 August 31, 2014, a collection of almost 500 private pictures of celebrities were posted on the imageboard 4chan, and later shared by other websites and social networks such as Imgur and Reddit.

The images were believed to have been obtained via a breach of Apple's cloud services suite iCloud, but it later turned out that the hackers could have taken advantage of a security issue in the iCloud API which allowed them to make unlimited attempts at guessing victims' passwords.

The leak prompted concern about the privacy and security of cloud computing services such as iCloud—with a particular emphasis on their use to store sensitive, private information.

What was the Skype hack?

A high-profile ex-England international footballer, a star BBC presenter, a Hollywood actor and an X Factor favourite are all said to be “panicked” that clips made using the video call service could now be released.

Insiders said the wholesale release of the videos came after the celebrity sex tape specialists Celebrity Busted had one of their accounts hacked.

The Celebrity Busted Tumblr page has posted links to leaked videos of British reality stars including Celebrity Big Brother’s Stephen Bear, Charlie Healy from X Factor band The Risk and The Apprentice candidate James Hill.

What are the most infamous celebrity sex tapes?

Pamela Anderson and Tommy Lee

Long before Kim Kardashian, the title of "biggest-selling sex tape" was held by Pamela Anderson and Tommy Lee, following their leaked 90s home video.

But unlike Kim, Pammie claims to have never seen a penny from the raunchy tape.

The steamy video was allegedly stolen by an ex-employee from the couple's LA home shortly after their wedding, and quickly became an internet sensation.

Getty Images - WireImage

Pamela Anderson and Tommy Lee was the first celebrity sex tape scandal

Paris Hilton and Rick Solomon

On June 15 2004 when Paris Hilton went from hotel heiress to pretty much a porn star.

Although the leaked video featuring her ex-Rick Salomon was mortifying, many say it put her name on the map.

The One Night In Paris video was released by Rick shortly before Paris' TV series The Simple Life debuted, causing a media sensation

When Paris stated publicly that she was "out of it", didn't know what she was doing during the taping of the video and did not approve its public release, Rick sued Hilton for defamation. Hilton then countersued Salomon over the release of the tape, settling out of court in July 2005.

Getty Images - WireImage

Kim Kardashian and Ray J have made money from their sex tape

Kim Kardashian and Ray J

Kim Kardashian's 2003 sex tape with her former boyfriend Ray J is now the biggest-selling sex tape of all time.

TMZ reports that Ray J usually earns $90,000 every three months from his deal with Vivid Entertainment.

Kim reportedly received $5 million from Vivid, giving the company the rights to distribute the sex tape, but she still earns from the tape, and can sometimes get up to $50,000 a week.

A 2016 book claims the sex tape was deliberately leaked by Kim and her mum Kris Jenner.

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